I can never resist a grilled cheese. My son is the same way and when I first started making them for him (pre a full set of teeth!) I would cut off the crust. One full year and a pirana-like bite later I still cut off those crusts “just in case” but secretly so I can have myself a perfect little grilled cheese snack. A true parenting perk.

But this grilled cheese is not for the babes. This a real deal grown-up grilled cheese. It’s got funky gruyere, decadent prosciutto, spicy bomba sauce and some quick caramelized onions. Eating the entire sandwich is a feat I would like you all to know I’ve accomplished. Several times. I had to test this until it was just perfect, okay?!

As any grilled cheese connoisseur knows, the key to the golden brown exterior is a little bit of mayo. Truth be told I can only tolerate mayo in very small doses and I think grilled cheese is truly the best use for it on the planet (unless we are talking chocolate cake!).  As for the bread, I’m sourdough all the way. This is one hearty sandwich that deserves a bread with some substance, both literally and figuratively.

If you can’t find bomba sauce in your grocery store, two things: 1) I am so so sorry because you are truly missing out. Please check amazon prime. 2) If amazon fails you, you could use any hot pepper sandwich spread, but bomba is the bomb.

Now what are you waiting for? Grab that cast iron skillet and get to grillin’!

Recipe and Headnote Molly Adams